Which of the following is a toxic cause of altered mental status?

Enhance your trauma care skills with the Platinum Trauma Exam. Use flashcards and multiple-choice questions with hints and explanations. Prepare now!

Multiple Choice

Which of the following is a toxic cause of altered mental status?

The key idea is distinguishing toxic or metabolic disturbances from structural brain problems. Hypoglycemia acts as a toxic/metabolic insult because the brain isn’t getting enough glucose, its primary energy source. When glucose falls, brain cells can’t function properly, leading to confusion, disorientation, and altered levels of consciousness quickly. This makes hypoglycemia a classic toxic cause of altered mental status and one that’s highly reversible with prompt glucose administration. The other conditions—brain injury, stroke, and tumor—cause mental status changes through structural disruption of brain tissue or blood flow, not through a toxin or metabolic shortage. They affect brain function by physical damage rather than by a metabolic insult.

The key idea is distinguishing toxic or metabolic disturbances from structural brain problems. Hypoglycemia acts as a toxic/metabolic insult because the brain isn’t getting enough glucose, its primary energy source. When glucose falls, brain cells can’t function properly, leading to confusion, disorientation, and altered levels of consciousness quickly. This makes hypoglycemia a classic toxic cause of altered mental status and one that’s highly reversible with prompt glucose administration.

The other conditions—brain injury, stroke, and tumor—cause mental status changes through structural disruption of brain tissue or blood flow, not through a toxin or metabolic shortage. They affect brain function by physical damage rather than by a metabolic insult.

More practice questions